Family behavior of the optical transition energies in single-wall carbon nanotubes of smaller diameters

Samsonidze, Ge. G.; Saito, R.; Kobayashi, N.; Gr&auuml;neis, A.; Jiang, J.; Jorio, A.; Chou, S. G.; Dresselhaus, G.; Dresselhaus, M. S.
December 2004
Applied Physics Letters;12/6/2004, Vol. 85 Issue 23, p5703
Academic Journal
Using the extended tight-binding model that allows bond lengths and angles to vary, the optical transition energies Eii in single-wall carbon nanotubes are calculated as a function of inverse tube diameter. After geometrical structure optimization, the 2n+m=constant family behavior observed in photoluminescence (PL) experiments is obtained, and detailed agreement between the calculations and PL experiments is achieved after including many-body corrections.


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